Lecture 2- hypothesis testing

Question 1

what is the hypothesis

Question 2

what is the null hypothesis and example

Question 3

what is the alternative hypothesis and example

Question 4

what are the 4 steps for hypothesis testing

Question 5

what happens if we reject the null

Question 6

what happens if we accept the null

Question 7

We need to carry out hypothesis test in order to decide whether to…

Question 8

what does the type of hypothesis depend on

Question 9

To compare populations we look at…

Question 10

what is the equation for the t-test

Question 11

what is the equation for standard error

Question 12

what is one tailed and what does it look like

Question 13

what is 2 tailed and what is it look like

Question 14

which tailed is used more

Question 15

what are the 3 types of t-test

Question 16

what is a one sample test

Question 17

what is a paired sample t-test

Question 18

what is an independent sample t-test

Question 19

We use a paired sample t-test to determine if there are ….

Question 20

is the placebo usually significant

Question 21

what are significant tests

Question 22

what is significance

Question 23

what is the p-value

Question 24

a p value <0.05 is what

Question 25

the chance of a Type 1 error (false positive) is <5%....

Question 26

can p values be specific and in a range

Question 27

what value can the p value never be

Question 28

how many decimal places does a p value have

Question 29

what is a type 1 error

Question 30

what is a type 2 error

Question 31

what is alpha

Question 32

what is beta

Question 33

is it difficult to get a significant p value

Question 34

what is the mean

Question 35

what is the SD

Question 36

if asked to summarise a study what do we talk about

Question 37

if the null hypothesis is rejected what is true

Question 38

if the null hypothesis is rejected what is false

Question 39

if the null hypothesis is accepted what is true

Question 40

if the null hypothesis is accepted what is false

Question 41

What is t distribution used as

Question 42

When is t distribution used

Question 43

What do the difference between 1 and 2 tailed depend on